An encoder-driven strategy for joint macroblock concealment and bit rate reduction in the H264 Advanced Video Coding standard
by Christos Grecos
International Journal of Autonomous and Adaptive Communications Systems (IJAACS), Vol. 1, No. 3, 2008

Abstract: This article first presents a combination of simple techniques that produce an extremely effective concealment method that maintains spatially correlated edges throughout any lost data; this in turn gives an increase in both mathematical and visual performance when compared with the commonly used bilinear concealment technique. Secondly, this article looks at an alternative use of the bilinear passive error concealment algorithm that is often used by H.264 decoders. Occasionally, a concealed macroblock is mathematically closer to the original than an encoded and decoded one. Thus, by removing these macroblocks from the stream at the encoder and thus forcing the decoder to conceal the missing data, a significant reduction in the bit stream size (up to 5%) can be achieved with negligible loss in quality.

Online publication date:: Sun, 03-Aug-2008

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Autonomous and Adaptive Communications Systems (IJAACS):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?


Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com